Boo-ray Machine

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The Boo Ray machine
Yikk presenting the Boo-Ray Machine
The Boo-ray Machine
The Boo-ray Machine scanning Bowser.

The Boo-ray Machine is a machine in Mario & Luigi: Bowser's Inside Story and Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey that Yikk built before his death. The name is a play on "x-ray machine" and may also be a play on Blu-ray, an optical disc format that was relatively new at the time of the game's release.

Yikk explains that the light makes the insides of one's body visible, and that it shows Boo transparency waves, giving off light and other special properties. Once Bowser activates the machine (by punching the button in the original game, or standing on the platform in the remake), Mario and Luigi, who are inside of Bowser to pursue Durmite, are able to access more of the Energy Hold, where they follow after Durmite. If Bowser keeps the Boo-ray Machine activated, Mario and Luigi may see hidden blocks somewhere. If Bowser deactivates it, several Boo-like blocks may appear as platforms.

Names in other languages[edit]

Language Name Meaning
Japanese テレサライトマシン[1]
Teresa Raito Mashin
Boo Light Machine
French Machine photobooïque Photobooic machine (made-up word coming from ancient Greek phôtós (light))
German Buu-Huu-Strahler Boo Spotlight
Italian Macchina a Raggi Boo Boo ray machine
Spanish (NOE) Máquina de Rayos BooX BooX Ray Machine



  1. ^ マリオ&ルイージRPG3!!!実況プレイ29メタ目. 蓮山史樹(はすやましき) (July 31st, 2014). Retrieved February 16th, 2023.